Cortical integration of audio–visual speech and non-speech stimuli

Using fMRI we investigated the neural basis of audio–visual processing of speech and non-speech stimuli using physically similar auditory stimuli (speech and sinusoidal tones) and visual stimuli (animated circles and ellipses). Relative to uni-modal stimuli, the different multi-modal stimuli showed increased activation in largely non-overlapping areas. Ellipse-Speech, which most resembles naturalistic audio–visual speech, showed higher activation in the right inferior frontal gyrus, fusiform gyri, left posterior superior temporal sulcus, and lateral occipital cortex. Circle-Tone, an arbitrary audio–visual pairing with no speech association, activated middle temporal gyri and lateral occipital cortex. Circle-Speech showed activation in lateral occipital cortex, and Ellipse-Tone did not show increased activation relative to uni-modal stimuli. Further analysis revealed that middle temporal regions, although identified as multi-modal only in the Circle-Tone condition, were more strongly active to Ellipse-Speech or Circle-Speech, but regions that were identified as multi-modal for Ellipse-Speech were always strongest for Ellipse-Speech. Our results suggest that combinations of auditory and visual stimuli may together be processed by different cortical networks, depending on the extent to which multi-modal speech or non-speech percepts are evoked.     

Is more similar,better? Interacting effect of the cognitive‐style congruency and tacitness of knowledge on knowledge transfer in the mentor–protégé dyad

This study explored the effects of cognitive‐style congruency on knowledge transfer in the mentor–protégé dyadic relationship and the moderating effect of tacitness of knowledge in this relationship. Using data from 148 sales personnel dyads, we found that the more congruent the cognitive style between a mentor and a protégé, the more effective the knowledge transfer between them. Moreover, the tacitness of knowledge moderated this association as expected. When the knowledge to be transferred was organized, systematic, and clear, this positive relationship was weakened. This relationship was particularly strong when the knowledge to be transferred was tacit, ambiguous, and unclear.     

动态系统研究方法在社会心理学中的应用

文章综述了动态系统研究方法在社会心理学中的应用。社会心理学现象具有复杂性、时间性和动态性特点,动态分析方法如动态系统行为模式确定、动态系统稳定性分析、人工神经网络和元细胞自动机等计算机模型的应用,可以有效的捕捉到人类思维和行为的这些特点。目前动态分析方法已经在社会心理学的动态属性研究中取得了一定的进展。     

《论语》文体形式的文化阐释

《论语》是以“语”体和“子曰”等形式记录孔子的言论,建构孔子的话语权威和思想价值体系的。“子曰”形式最宜于孔子独自式地直接阐发自己的思想,“问——子曰”形式由于受到孔子“礼”和“仁”的规范,导致与孔子对话的真正主体缺席,而成为孔子建构自己话语权威的有效言说方式。孔子重视“言”的作用,但反对“巧言”。孔子不期望论辩,面对论辩他往往先预设道德判断,然后否定欲辩者,从而最终否定论辩本身。对孔子来说,“巧言”和“沦辩”会使自己的话语权威和思想价值体系面临被解构的威胁。     

朱子中和新旧说转向的再审视——从“方往方来之说”到“识仁”与“持敬”

传统观点认为,乾道己丑春(1169年,朱子年40岁),朱子与友人蔡季通讨论中和问题,突然自疑旧说之非并确立新说,中和新旧说遂以此为划界。这容易让我们忽视一个重要事实:新旧说的转变是一个渐进而非顿悟的过程。丙戌,朱子去信南轩确立中和旧说之后,自丁亥年(1167年,朱子年38岁)开始,朱子思想中出现了"识仁"与"持敬"工夫的认识转向,这标志着中和新说思想已经开始酝酿。中和新说的萌芽尤其反映在《答张钦夫》第三十四书("中和旧说"四札之最后一札)中。提出这一点,不仅有利于确定学界一直争论的"中和旧说"四札的顺序,同时看到《答张钦夫》第三十四书在中和新旧说转向过程中的重要性,更有利于重审朱子中和旧新说的转变过程。     

Differences in paper-and-pencil versus computerized line bisection according to ADHD subtype and hand-use

Two versions of the line bisection task, paper-and-pencil and computerized, were administered to non-medicated children (5-12 years) with and without Attention-Deficit/Hyperactivity Disorder (ADHD). Fifteen children were classified with ADHD-Inattentive type (ADHD-I), 15 were classified with ADHD-Combined or Hyperactive-Impulsive type (ADHD-C), and 15 children served as controls. During the paper-and-pencil task, and irrespective of hand-use, participants with ADHD-C bisected lines with a right bias, whereas participants with ADHD-I showed a leftwards bias. Interestingly, during the computerized version, an opposite pattern of hemineglect was observed with a leftwards bias for participants with ADHD-C and a rightwards bias for participants with ADHD-I. These findings suggest that different task demands are associated with the paper-and-pencil and computerized tasks. The findings also suggest that the two subtypes differ according to their cognitive profile, and possibly differ as to their underlying neural impairment.     

跨期决策的神经机制：基于体素形态学和弥散张量成像研究的证据

目前神经经济学的首要目标是探讨人们经济决策背后的认知机制和神经基础。随着脑成像技术的发展, 人们对于脑结构和功能的认识也越来越深入。跨期决策作为经济决策领域的一个重要分支, 对其理解可以丰富决策的理论内容。首先, 梳理了关于跨期决策神经机制研究, 阐述了跨期决策的四种理论, 分别为单一评价理论(single-valuation theory)、双评价理论(dual-valuation theory)、自我控制理论(self-control theory)和自我参照加工理论(self-referential processing theory), 以及脑损伤研究证据。其次, 分别整理了基于体素形态学和弥散张量成像技术在跨期决策领域中的应用, 并揭示前额叶灰质和白质体积以及背外侧前额叶-纹状体神经纤维连接对于决策冲动性的影响。最后, 未来研究需要注意其在研究方法、认知过程、决策冲动性评估模型上的创新与突破。     

试论网络文化的心理代偿功能

e时代,网络文化的心理功能成为心理学研究的新领域,本文从网络文化的狂欢性角度,探讨了网络文化在心理代偿机制中的独特性和社会意义。     

Iron in solution with aluminum matrix after non-equilibrium processing: an atom probe tomography study

In this paper, we report on the influence of rapid solidification and severe plastic deformation on the solid solubility of Fe in Al. Atom probe tomography, for the first time, was performed on fine (3–4 μm diameter) and coarse (~100 μm) as-atomised Al-5 at.% Fe powder and cryomilled Al-5 at.% Fe powder. The atomised powders exhibited negligible Fe in solution with Al, whereas the cryomilled powder contained ~2 at.% Fe in solution. Moreover, our results suggest that severe plastic deformation is preferable to atomisation/rapid solidification for increasing the non-equilibrium solid solubility of Fe in Al.     

人际关系对社会责任感的影响

为揭示人际关系对社会责任感的影响及其机制, 该研究采用问卷调查和实验相结合的方法, 探讨了二者之间的相关与因果关系, 以及共情的中介效应。研究1采用问卷调查法探讨这三者的关系, 结果发现, 人际关系对社会责任感具有显著的正向预测作用, 并且共情在二者之间发挥着部分中介效应。研究2采用实验法操纵了人际关系效用, 结果显示, 高效用组的社会责任感显著高于低效用组和控制组, 并且低效用组显著低于控制组。这表明人际关系效用对社会责任感具有明显的影响。研究3进一步操纵了人际关系的亲密度, 结果发现, 亲密度对效用与社会责任感的关系具有调节作用, 在低亲密度条件下, 高效用组的社会责任感明显高于低效用组, 但是在高亲密度条件下, 社会责任感均维持较高水平。因此, 人际关系对社会责任感具有明显正向影响。